PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A2146Transformer,audio Frequency

Lockheed Martin Corp · NSN 5950-00-038-0703 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-038-0703 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-038-0703. Primary manufacturer part number: A2146.
Features
  • Transformer,audio Frequency — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Inclosure Type: HERMETICALLY SEALED
  • Maximum Transformer Power Rating: 6.0 WATTS SINGLE COMPONENT
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Body Height: 3.312 INCHES NOMINAL IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-038-0703, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-038-0703
Primary Part NumberA2146
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Length1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeHERMETICALLY SEALED
Maximum Transformer Power Rating6.0 WATTS SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Body Height3.312 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity7 TAB, SOLDER LUG
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Body Length2.312 INCHES NOMINAL IN
Winding Operating Current45.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Impedance Rating in Ohms4.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
Frequency Rating50.0 HERTZ MINIMUM AND 10.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Body Width2.250 INCHES NOMINAL IN
Primary to Secondary Turn Ratio1 TO 25 OVER-ALL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5996-00-070-3657A505300 INTERCHANGEABLE
Amplifier,radio Frequency
Ateez Corp
5310-00-134-41581783 INTERCHANGEABLE
Washer,back-Up
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
5962-00-186-85082868543-1 INTERCHANGEABLE
Microcircuit,linear
Austin Semiconductor, Inc Dba Micross Components
5940-00-229-96441383A INTERCHANGEABLE
Terminal Board
Birnbach Co Inc
5325-00-262-78231783 INTERCHANGEABLE
Grommet,nonmetallic
Atlantic India Rubber Co Inc
6920-00-347-8795 INTERCHANGEABLE
Plunger,cable Cutte
3455-00-395-000115154 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
2915-00-449-1806 INTERCHANGEABLE
Spring,relief Valve
5940-00-539-4440K7117710P3 INTERCHANGEABLE
Terminal Board
General Electric Company
6210-00-717-2900 INTERCHANGEABLE
Light,indicator
Cross-Reference Index
Part NumberManufacturer
1783 Berkshire Transformer (USA)
A2146 PRIMARY Lockheed Martin Corp (USA)
Related Parts
5996-00-070-3657INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
A505300
5310-00-134-4158INTERCHANGEABLE
WASHER,BACK-UP
1783
5962-00-186-8508INTERCHANGEABLE
MICROCIRCUIT,LINEAR
2868543-1
5940-00-229-9644INTERCHANGEABLE
TERMINAL BOARD
1383A
5325-00-262-7823INTERCHANGEABLE
GROMMET,NONMETALLIC
1783
6920-00-347-8795INTERCHANGEABLE
PLUNGER,CABLE CUTTE
3455-00-395-0001INTERCHANGEABLE
CUTTER,MILLING,END
15154
2915-00-449-1806INTERCHANGEABLE
SPRING,RELIEF VALVE
5940-00-539-4440INTERCHANGEABLE
TERMINAL BOARD
K7117710P3
6210-00-717-2900INTERCHANGEABLE
LIGHT,INDICATOR
3610-00-897-8655INTERCHANGEABLE
INKING PAD,DUPLICATING MACHINE
1783
4910-01-563-6997INTERCHANGEABLE
STAND,VEHICLE SUPPORT

Frequently Asked Questions

What is NSN 5950-00-038-0703?

NSN 5950-00-038-0703 is a Transformer,audio Frequency, manufactured by Lockheed Martin Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-038-0703?

NSN 5950-00-038-0703 has 2 cross-referenced part numbers: 1783 (Berkshire Transformer), A2146 (Lockheed Martin Corp).

What NSN replaces 5950-00-038-0703?

There are 12 known substitutes for 5950-00-038-0703: 5996-00-070-3657, 5310-00-134-4158, 5962-00-186-8508 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A2146?

Key specifications for A2146: Center to Center Distance Between Mounting Facilities Parallel to Length: 1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Inclosure Type: HERMETICALLY SEALED; Maximum Transformer Power Rating: 6.0 WATTS SINGLE COMPONENT; Thread Quantity Per Inch: 32 SINGLE GROUP. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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